On your local machine you will need to overwrite the existing OmniPilot scripts with these. Just download the GmailOmniPilotScripts.zip file to your computer, & extract the files into your ...\Nirvana\OT201*\VBA\OmniPilot folder.

Make sure to overwrite the existing files in this folder when prompted.

Launch OmniPilot -> highlight the "modGmail.txt" script on the left side of OmniPilot, & type in your Gmail ID and PW into those two spots shown in the screenshot.